Results 91 to 100 of about 1,143,028 (268)

Dynamic ECG signal quality evaluation based on persistent homology and GoogLeNet method

Frontiers in Neuroscience, 2023
Cardiovascular disease is a serious health problem. Continuous Electrocardiograph (ECG) monitoring plays a vital role in the early detection of cardiovascular disease. As the Internet of Things technology continues to mature, wearable ECG signal monitors
Yonglian Ren, Feifei Liu, Shengxiang Xia, Shuhua Shi, Lei Chen, Ziyu Wang   +5 more
semanticscholar   +1 more source

Nori Diagrams and Persistent Homology [PDF]

Mathematics in Computer Science, 2019
45 ...
Manin, Yuri I., Marcolli, Matilde
openaire   +5 more sources

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Cubical Homology-Based Machine Learning: An Application in Image Classification

Axioms, 2022
Persistent homology is a powerful tool in topological data analysis (TDA) to compute, study, and encode efficiently multi-scale topological features and is being increasingly used in digital image classification.
Seungho Choe, Sheela Ramanna
doaj   +1 more source

PHAT – Persistent Homology Algorithms Toolbox

Journal of Symbolic Computation, 2014
Phat is an open-source C++ library for the computation of persistent homology by matrix reduction, targeted towards developers of software for topological data analysis. We aim for a simple generic design that decouples algorithms from data structures without sacrificing efficiency or user-friendliness.
Bauer, Ulrich, Kerber, Michael, Reininghaus, Jan, Wagner, Hubert   +3 more
openaire   +3 more sources

Phenotypic and genotypic characterization of single circulating tumor cells in the follow‐up of high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Single circulating tumor cells (sCTCs) from high‐grade serous ovarian cancer patients were enriched, imaged, and genomically profiled using WGA and NGS at different time points during treatment. sCTCs revealed enrichment of alterations in Chromosomes 2, 7, and 12 as well as persistent or emerging oncogenic CNAs, supporting sCTC identity.
Carolin Salmon, Rui P. L. Neves, Nikolas H. Stoecklein, Sven‐Thorsten Liffers, Jens Siveke, Jan D. Kuhlmann, Pauline Wimberger, Paul Buderath, Rainer Kimmig, Sabine Kasimir‐Bauer   +9 more
wiley   +1 more source

Evaluation of Electroencephalography Signals in Alzheimer’s Disease Using Coherence Analysis and Persistent Homology

Experimed
Objective: This study aimed to use a new approach, namely persistent homology, to analyse electroen cephalogram (EEG) coherence and identify the alterations in brain connectivity in patients with Alzheimer’s disease (AD).Materials and Methods: We applied
Atilla Uslu, Mustafa Bayrak, Ömer Bahadır Eryılmaz, Cihan Katar   +3 more
doaj   +1 more source

Landscapes of data sets and functoriality of persistent homology

, 2020
The aim of this article is to describe a new perspective on functoriality of persistent homology and explain its intrinsic symmetry that is often overlooked. A data set for us is a finite collection of functions, called measurements, with a finite domain.
Chacholski, Wojciech, De Gregorio, Alessandro, Quercioli, Nicola, Tombari, Francesca   +3 more
core  

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

Persistent Topological Laplacians—A Survey

Mathematics
Persistent topological Laplacians constitute a new class of tools in topological data analysis (TDA). They are motivated by the necessity to address challenges encountered in persistent homology when handling complex data.
Xiaoqi Wei, Guo-Wei Wei
doaj   +1 more source